Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Fast, Reliable Commercial Locksmith Across Altadena
Commercial locksmith work in Altadena means securing properties under LA County Sheriff jurisdiction, not a city police department. For multi-tenant buildings, storefronts, and offices across Altadena, that changes how key control, rekeying, and emergency access are handled. Our Commercial Locksmith team reaches most Altadena addresses in 30 to 45 minutes, and we coordinate dispatch from our Los Angeles office while crews work locally throughout the community. Call (910) 714-4287 any hour, and a live person answers.
Why Dunmore Locksmith Is Altadena’s Preferred Commercial Locksmith Company
Altadena property owners call us because we show up the way no generic shop does: background-checked, uniformed, photo-badged, and sent to you by name and photo before the visit. That’s the Threshold Standard, and it matters more in a place like Altadena where landlords, on-site managers, and business owners are often letting a stranger into a building that tenants and employees depend on. Perry Osgood leads our team, and every job he sends out carries the 365-Day Done Right Promise: a written guarantee on each repair, and if it fails, we return at no charge.
We’ve worked the Lincoln Avenue corridor, the commercial strips along Fair Oaks, and the older multi-tenant buildings near Lake Avenue that sit on the Pasadena line. What we’ve learned is that Altadena’s locksmith needs don’t look like Pasadena’s. The housing stock is older, the county rules are different, and since the January 2025 Eaton Fire, a huge share of our commercial calls involve securing vacant fire-damaged properties or rekeying buildings changing hands in the recovery zone. When a Altadena caller says a former tenant still has a key, we know exactly what to ask about the cylinder type and keyway. You can read more about our service area on our Altadena page.
Commercial Door Repair in Altadena
Commercial Door Repair in Altadena often starts with a door that won’t latch because Santa Ana wind grit has worn the deadbolt cylinder or the wood frame has racked enough to misalign the strike plate, and our Door Lock Repair - Altadena team sees this every season. In Altadena, a typical commercial door repair runs $95 to $210 depending on whether we’re adjusting hardware, replacing a worn cylinder, or rehanging a misaligned closer. Full replacement of a commercial lever set on an older Altadena storefront runs $180 to $340, including hardware and labor.
Door Closers and Exit Hardware
Older Altadena commercial buildings often have original closers that no longer hold tension. When a closer fails, the door slams or won’t shut fully, and that’s a security gap. We service and replace commercial closers, and we check the latch and strike alignment at the same time so the door actually secures when it closes.
Frame Repair and Strike Replacement
On a commercial door, a worn strike plate or a split frame means a deadbolt that looks locked but can be forced with a shoulder. We repair or replace strike plates, reinforce frames with longer screws, and bring the door back to a tight, secure close. On Altadena’s older wood-framed entries, this is one of the most common repairs we make.
Master Key System in Altadena
A Master Key System in Altadena solves a problem this community knows well: too many key copies walking around a multi-tenant building, with no record of who holds them. We design and install restricted master key systems so a property owner and on-site manager each carry one key that opens common areas, while each tenant key opens only their own unit. In Altadena, a basic three-door master key setup runs $250 to $425, and a full six-unit building with restricted keyway runs $800 to $1,400 including all cylinders, hardware, and a controlled key issuance log.
Restricted Keyways for Tenant Turnover
When a tenant moves out of an Altadena building, you can’t be sure how many copies of the old key exist, which is why many landlords Change Door Locks - Altadena between tenants. A restricted keyway means no locksmith can duplicate the key without your written authorization, and no hardware store can copy it at all. That ends the cycle of key copies floating around Lake Avenue apartment buildings and commercial properties.
Key Control Logs and Owner Access
We build a written key schedule for every system we install, so you know exactly which key opens which door. If a key goes missing, we can rekey just that affected cylinder without disrupting the rest of the building. For Altadena property managers juggling multiple buildings, that kind of control is the difference between a security plan and a guess.
Trusted Brands We Service in Altadena
We’re factory-authorized on Schlage commercial hardware, and we regularly service and install Medeco high-security cylinders and Abloy electromechanical locks throughout Altadena. That means when a Altadena office needs a restricted keyway, we can cut and issue keys in-house without a week-long backorder from a distributor. We keep common commercial lever sets, deadbolts, and exit devices on our service vehicles, so most repairs on Schlage or Medeco hardware are completed same-day. For property owners rebuilding after the Eaton Fire, we also stock fire-rated hardware compatible with the steel doors now going into new construction along the recovery corridor.
Common Commercial Locksmith Problems We See in Altadena Homes
- Former tenants with unaccounted key copies. In Altadena’s unincorporated county setting, no city agency tracks who holds keys to a multi-tenant building. The only real fix is a full rekey to a restricted keyway that no one can duplicate without owner authorization.
- Original mortise lock sets on 1920s – 1950s buildings. Many Altadena commercial and mixed-use properties still run on skeleton-key mortise hardware that predates modern deadbolts. These need specialty rekeying and often a retrofit to ANSI Grade 1 deadbolts without drilling out the original door prep.
- Santa Ana wind and door racking. Intense wind events in the San Gabriel foothills push dust and grit into exposed deadbolt cylinders and cause wood-framed doors to shift seasonally. Tenants start jamming doors or leaving them propped, which quietly defeats the lock until a real failure happens.
- Eaton Fire recovery lockouts and rekeys. Since January 2025, we’ve been called to secure fire-damaged vacant buildings, padlock chain-link gates on bare slabs, and rekey storefronts and multi-tenant properties changing hands in the recovery zone. These aren’t routine service calls; they’re emergency security work on buildings where the old keys mean nothing anymore.
Pricing for Commercial Locksmith in Altadena, CA
Here’s what Altadena commercial work actually costs, in plain ranges so you can budget before you call. A commercial lockout with no damage runs $85 to $140. Rekeying a single commercial lever or deadbolt runs $25 to $45 per cylinder plus a service call of $65 to $95. A master key system for a small multi-tenant building runs $800 to $1,400. Panic bar installation runs $350 to $650 per door including hardware. Access control for a single entry point runs $900 to $2,200 depending on reader type and door hardware. Every quote is delivered in writing before any work starts, and the price on your invoice is the price you approved. There’s no call-out surcharge added on arrival. Call (910) 714-4287 for a free estimate on any of this work.
We Also Serve Cities Near Altadena
Beyond Altadena, our commercial locksmith crews cover Commercial Locksmith in Altadena‘s neighbors: Pasadena, San Marino, Sierra Madre, and South Pasadena. The same background-checked technicians, written pricing, and 365-Day Done Right Promise apply in every one of those communities. If your building sits near the Altadena-Pasadena line or closer to the foothills, we’re already working nearby.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Commercial Locksmith in Altadena
You stop it by rekeying every common-area cylinder to a restricted keyway and issuing a controlled master key schedule. The old keys stop working immediately, and no one can duplicate a restricted key without your written authorization. Call (910) 714-4287 for a written quote on a full building rekey.
Yes. In most cases we open a commercial lock without drilling, using non-destructive entry tools. When drilling is the only option on a high-security cylinder, we tell you before we do it and we replace the cylinder the same visit so the door is secure again. Call (910) 714-4287 and we’ll walk through the options before anyone is dispatched.
Most original mortise lock bodies can be rekeyed without replacement, and we can also retrofit a modern deadbolt above the mortise if you want better security without tearing out the original door. Many 1920s – 1950s Altadena buildings need both: a rekey of the mortise cylinder and a new ANSI Grade 1 deadbolt for real protection. We’ll tell you what’s salvageable and what’s not, in writing, before any work begins.
A master key system gives the owner and manager one key each that opens every common door, while each tenant’s key opens only their own unit. It also creates a written key schedule so you always know who holds what. For a six-unit Altadena building, expect to pay roughly $800 to $1,400 for a complete restricted master key installation. Call (910) 714-4287 for a specific quote on your building.
It changes what we look for. There’s no city locksmith licensing layer to check, which means building owners are responsible for their own key control and hardware compliance under county rules. We handle that by recommending restricted keyways, documenting every rekey, and making sure your hardware meets the fire-door and egress standards that apply in LA County. The fact that Altadena falls under Altadena Station Sheriff jurisdiction also means security calls sometimes involve coordinating with deputies on vacant or fire-damaged properties, which our team has done regularly since the Eaton Fire. Call (910) 714-4287 to talk through your building.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Altadena since 2007.